Boulder District-Colorado

The Boulder District-Colorado is a tungsten mine located in Boulder county, Colorado.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Boulder District-Colorado  

State:  Colorado

County:  Boulder

Elevation:

Commodity: Tungsten

Lat, Long: 40.00001, -105.45000

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Boulder District-Colorado

Boulder District-Colorado MRDS details

Site Name

Primary: Boulder District-Colorado


Commodity

Primary: Tungsten


Location

State: Colorado
County: Boulder
District: BOULDER DISTRICT


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: District
Operation Category: Producer
Deposit Type: VEINS
Operation Type: Unknown
Discovery Year: 1900
Years of Production:
Organization:
Significant:


Physiography

Not available


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: INTERSECTIONS OF BRECCIA REEFS (FAULTS OF LARAMIDE AGE WITH LATER LARAMIDE FRACTURES)

Type: L
Description: PORPHYRY DIKES OF EARLY TERTIARY AGE CUT THE PRECAMBRIAN ROCKS


Alterations

Alteration Type: L
Alteration: SERICITIZATION
Alteration Text: CLAY ALTERATION, SERITICIZED ROCK BORDERING ORE

Alteration Type: L
Alteration: CLAY ALTERATION


Rocks

Not available


Analytical Data

Not available


Materials

Not available


Comments

Not available


References

Reference (Deposit): LEMMON, D.M., UNPUBLISHED DATA.

Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.

Reference (Deposit): VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO, STATE OF COLO. MIN. RES. BOARD, P.328-336.


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.